Despite the fact that the action takes place in Philadelphia and constantly references this location, its traditions and character, the series "It's Always Sunny in Philadelphia" was actually filmed in Los Angeles, USA.

Filming Locations:

Paddy's Pub

In the Movie

Scene where the exterior of Paddy's Pub is shown

In Reality

The scene was filmed at The Nate Starkman Building, also known as the Pan Pacific Warehouse, is a three-story factory built in 1908, used exclusively for film and photo shoots.

Los Angeles Center Studios

In the Movie

In Reality

The scene was filmed at Los Angeles Center Studios began its life in 1958 as the Union Oil Center, designed by architect William Pereira and Charles Luckman in the Miesian style. In 1999, a few years after Unocal's headquarters moved, the complex was converted into a film studio with the construction of 6 sound stages. The main office tower and surrounding streets were repurposed as a permanent backlot, with sets including offices, a police station, a hospital, a morgue, elevators in several different styles, a garage, and much more.

South Mateo Street

In the Movie

Scene where Cricket goes to work for his family's company, trying to get a second chance in episode 12x09 "A Cricket's Tale".

In Reality

The scene was filmed at This building was built in 1929 by architect George H. Kelham for the Los Angeles headquarters of Hills Bros. Coffee. The lower floor of the building is a large warehouse space, and the upper floor is offices.

Alley Behind Paddy's Pub

In the Movie

Scene where Mac and Charlie ride bikes through the alley

In Reality